What does natural selection primarily explain?

The concept of natural selection, central to Charles Darwin's theory of evolution, posits that organisms better adapted to their environment tend to survive and produce more offspring. This process leads to gradual changes in populations over generations, favoring traits that enhance survival and reproduction. It is a fundamental mechanism driving the diversity of life on Earth.

What does natural selection primarily explain?

1. A.The unchanging nature of species.
2. B.The sudden appearance of new species.
3. C.The survival and reproduction of well-adapted organisms.
4. D.The elimination of all genetic variation.